lempinen.neatseeker.stemmer
Class charvec

java.lang.Object
  |
  +--lempinen.neatseeker.stemmer.charvec

public class charvec

extends java.lang.Object

Dr. Martin Porter's stemmer for English. All code in this class is from Dr. Porter. All credit goes to the original author. The original header is included below.

 Porter stemmer in Java. The original paper is in

     Porter, 1980, An algorithm for suffix stripping, Program, Vol. 14,
     no. 3, pp 130-137,

 See also http://www.muscat.com/~martin/stem.html
 
 Bug 1 (reported by Gonzalo Parra 16/10/99) fixed as marked below.
 Tthe words 'aed', 'eed', 'oed' leave k at 'a' for step 3, and b[k-1]
 is then out outside the bounds of b.
 
 Similarly,
 
 Bug 2 (reported by Steve Dyrdahl 22/2/00) fixed as marked below.
 'ion' by itself leaves j = -1 in the test for 'ion' in step 5, and
 b[j] is then outside the bounds of b.
 
 Release 3.
 

Version:

$Id: charvec.java,v 1.1.1.1 2000/09/23 07:29:27 lempinen Exp $

Author:

Sami Lempinen

Field Summary

char[]	b
private int	i
private static int	INC
private int	j
private int	k
private int	k0

Constructor Summary

charvec()

Method Summary

void	add(char ch)
private boolean	cons(int i)
private boolean	cvc(int i)
private boolean	doublec(int j)
private boolean	ends(java.lang.String s)
private int	m()
(package private) void	r(java.lang.String s)
void	reset()
(package private) void	setto(java.lang.String s)
void	stem(int i0)
private void	step1()
private void	step2()
private void	step3()
private void	step4()
private void	step5()
private void	step6()
java.lang.String	toString()
private boolean	vowelinstem()

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, wait, wait, wait

Field Detail

b

public char[] b

i

private int i

j

private int j

k

private int k

k0

private int k0

INC

private static final int INC

Constructor Detail

charvec

public charvec()

Method Detail

reset

public void reset()

add

public void add(char ch)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

cons

private boolean cons(int i)

m

private int m()

vowelinstem

private boolean vowelinstem()

doublec

private boolean doublec(int j)

cvc

private boolean cvc(int i)

ends

private boolean ends(java.lang.String s)

setto

void setto(java.lang.String s)

r

void r(java.lang.String s)

step1

private void step1()

step2

private void step2()

step3

private void step3()

step4

private void step4()

step5

private void step5()

step6

private void step6()

stem

public void stem(int i0)